68909
This number is a prime.
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The smallest invertible prime such that (68909^6 + 68909^8
+ 68909^9 + 68909^0 + 68909^9) is an emirp. [Bajpai]
Submitted: 2021-04-11 03:58:36; Last Modified: 2021-04-11 11:42:35.
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